US Bridges

SH 85 over Allen Creek

Fair

Dimmit County, Texas · 0.05 MI SW of FM 468 · Structure no. 220640030102012

Built
1925
100 years old, rebuilt 1953
Condition
Fair
inspected December 2022
Type
Culvert
Concrete
Length
28 ft
5 main spans
Daily traffic
4,235
2020 count
Owner
State
State Highway Agency

About this bridge

SH 85 over Allen Creek is a concrete culvert carrying SH 85 over Allen Creek in Dimmit County, Texas. It was built in 1925 and reconstructed in 1953, so it is 100 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 4,235 vehicles a day, roughly 30% of them trucks, projected to reach 12,440 by 2033. The structure is 28 ft (8.5 m) long and 45 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

Location

Open in Google Maps
CarriesSH 85
CrossesAllen Creek
Location0.05 MI SW of FM 468
RouteState Highway 85
CountyDimmit County
StateTexas
Coordinates28.57383, -99.52107
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length28 ft (8.5 m)
Longest span5 ft (1.5 m)
Deck width45 ft (13.8 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,235 (2020)
Projected traffic12,440 by 2033
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 85 over Allen Creek built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1953.

What condition is SH 85 over Allen Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2022.

How much traffic does SH 85 over Allen Creek carry?

About 4,235 vehicles per day (2020 count), of which roughly 30% are trucks.

How long is SH 85 over Allen Creek?

The structure is 28 ft (8.5 m) long with a longest span of 5 ft (1.5 m) and a deck 45 ft wide.

Who owns SH 85 over Allen Creek?

It is owned by the State Highway Agency.